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XLTX to JSON converter

Convert XLTX to JSON online from any device with a free converter.

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About Spreadsheet converter

Convert XLTX to JSON files online with our free spreadsheet converter. Whether you're on Windows 10, Mac, Android or iPhone, converting XLTX files is quick and easy.

Spreadsheet file formats like XLSX, XLS, ODS, and CSV are commonly used for organizing and analyzing data. XLSX and XLS are associated with Microsoft Excel and support advanced features, CSV is a simpler format, storing data as plain text. Popular applications for working with tables include Microsoft Excel, Google Sheets, and Apple Numbers.

To change XLTX to JSON just drop your file onto the upload form, pick the output format and hit the Convert button. After the conversion is finished, download your JSON file instantly. No email needed.

Check our video
XLTX

Microsoft Excel Open XML Template

XLTX is a file format used for Excel Open XML Spreadsheet Templates, designed to store pre-formatted spreadsheet layouts for creating consistent and reusable Excel documents. It is supported by Microsoft Excel, LibreOffice Calc, and other spreadsheet applications, enabling users to create, edit, and share templates across platforms. The format is based on XML and ZIP compression, allowing for structured data storage, advanced formatting, and customization options such as formulas, styles, and macros.

JSON

JavaScript Object Notation File

JSON is a lightweight, text-based data interchange format that is easy for humans to read and write and for machines to parse and generate. It is widely used in web applications, APIs, and configuration files, supported by programming languages like JavaScript, Python, and Java, and tools like Postman and JSONLint. JSON organizes data in key-value pairs and arrays, supports nested structures, and can include strings, numbers, booleans, null values, and objects, making it versatile for representing complex data hierarchies.

Add the conversion API to your app

  • Convert over 200 file formats — including PDF, Word, Excel, HTML, images, and many more
  • Load files from disk, URLs, FTP servers, or cloud storage (such as Amazon S3 or Azure)
  • Customize output settings — rotate and reorder pages, add comments, or apply watermarks
How it works

How to convert XLTX to JSON

Step 1
Click inside the file drop area to upload XLTX file or drag & drop XLTX file.
Step 2
Click on Convert button. Your XLTX files will be uploaded and converted to JSON result format.
Step 3
Download link of result files will be available instantly after conversion.
Step 4
You can also send a link to the JSON file to your email address.
FAQ

Questions & Answers

Other Supported Conversions

You can also convert XLTX into many other file formats. Please see the complete list below.

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